My 2 cents -
Every thing you do to make it "race-ish" will make it that much crappier of a place to spend your commute, or road trips, or whatever. The biggest weight penalty in most modern cars is seats, especially electric ones. They weigh a ton compared with race seats. But race seats would get really, really old real fast for a DD.
- stock speakers usually aren't very heavy, especially in older cars with tiny stock magnets lol.
- pulling the door panels and just do them in aluminum or (for more lightweight) coroplast. I guess that sounds fine, though not sure it really saves much weight.
- it's not the carpet that's heavy, it's usually the tar soundproofing applied underneath it (that stuff gets REALLY heavy). So unless you're gonna take that up, making the carpet snap out probably isn't much of a difference, weight-wise.
- the amount of weight saved by putting holes in stuff is pretty much inconsequential. I have an *actual* dedicated race car and have hardly done any of that.
- the "race-iest" thing you could do aside from seats is an aftermarket steering wheel. But then you lose your airbag, radio controls, or whatever - though you may not have any of that stuff on an F-body, so that would be a worthwhile thing that would be fine for DD duties.
My suggestion would be to make the EXTERIOR aesthetically race-y instead, and don't bother with the interior in any major way that can't be easily undone. Your big weight things that actual race cars get rid of are things you won't want to get rid of: seats, air conditioning, entire stereo system, soundproofing, power window motors, etc etc. The things you're talking (aside from removing the rear seats) probably adds up to like 10lbs. Taking your passenger seat out would probably lose 5x as much weight. I'd suggest a rollbar, but that actually will add weight, of course...
So instead, get some nice lightweight wheels, maybe do a vinyl wrap, a spoiler or something, IDK.
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Alternately, do what makes you happy. Hell, my competition race car has plenty of things still in it I could get rid of to knock off a dozen more pounds (or more). But it's all a tradeoff to what you want, what you like, and what your priorities are!
I'm just saying, most of your driving time is on the street. So don't make the car into anything you'll hate driving every day and only love at trackdays...